Explain the basics of photography, explain the basics of photography.

1. Aperture is a common parameter in shooting. The size of the aperture can directly affect the amount of light and the depth of field. It is very important to control the aperture when shooting. The representation of the aperture is generally expressed by F. The greater the value of F, the larger the aperture and the more light the lens gets. In short, the bigger the aperture, the brighter the picture will be. The relationship between aperture and depth of field is that the larger the aperture, the smaller the depth of field, and the smaller the aperture, the greater the depth of field.

2. shutter. Another important parameter that beginners need to learn is the adjustment of shutter. Shutter speed is closely related to exposure time. If the light is good and sufficient when shooting, the exposure time is short and the shutter speed is short. For beginners, you can choose the automatic file or the P file on the camera. These two gears are relatively easy to operate and don't require users to make too many adjustments. At the same time, the amount of light entering the photo can be adjusted, and the shutter can be adjusted empirically according to the environment and light effect when shooting.

3. Macro shooting, as the name implies, is the subject of shooting small objects, such as small insects and food details. Macro shooting needs to make good use of light and shadow changes and composition skills. The definition of macro shooting is a key issue. If the photos taken are blurred, it is definitely not possible. Micro-photography is mainly to portray the details vividly. Therefore, a tripod should be used as an assistant when shooting, because people tend to shake their hands when holding it. I always feel blurred when I enlarge it. With a tripod, you can fix the camera in a certain position, focus on the micro-world accurately, and ensure the clarity of the photos.

4. Sensitivity is actually what we call ISO. People who have studied photography must know that aperture, shutter and sensitivity are called the three elements of exposure. Sensitivity refers to the camera's sensitivity to light. In traditional cameras, the setting of sensitivity is a fixed value and cannot be changed. Changes over the years will also change sensitivity. The higher the sensitivity, the stronger the sensitivity to light. Shooting in a dark environment can improve the ISO value, thus making the photos brighter and more noisy.

5. In addition to controlling the aperture, the focal length is also an important parameter that needs to be manually adjusted when shooting. Simply put, the focal length determines the visual field and viewing area we can see from the lens. From the parameters on the lens, we can see the focal length marks, such as 50mm and 17-40mm, which represent different meanings. The number of 50mm represents a fixed focal length, and the focal length is fixed, but the recognition between the two numbers.

6. Camera exposure refers to the amount of light that the lens enters the photosensitive element when shooting. A high-definition, rich and natural photo must be exposed normally. If the exposure is insufficient, the light received by the photosensitive element will be less, and the overall picture will be dark. If it is overexposed, it receives too much light and the photos are too bright. Reasonable exposure is formed by the comprehensive action of aperture, shutter and sensitivity. Only the close cooperation and contact of the three can ensure the normal exposure during shooting. When the light of the photosensitive element is insufficient, we can adjust the exposure by opening the aperture or reducing the shutter speed.